I've been having issues starting truck when temps get in the 20s F. I did have a bad fuel pump which I replaced recently. That solved other problems but not this one. It has an almost brand new starter. Took battery for testing this morning (it's about 2 and 1/2 years old) and they said it testing almost like new. It seems to be getting plenty of juice but won't fire up..Would bad wires effect starting on cold mornings? Once temps get up near 30ish don't seem to have a problem. I know I'm not supposed to pump the pedal on Fuel injection but sometimes have to get it started in cold. I have shortie taylor fat wires for last 3 years and never had a problem before. I know folks have Any suggestions appreciated.